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148968620 = 22517438143
BaseRepresentation
bin10001110000100…
…01010010101100
3101101022101112022
420320101102230
5301113443440
622440525312
73456132563
oct1070212254
9341271468
10148968620
11770a8369
1241a80838
1324b2a618
1415adabda
15d128cb5
hex8e114ac

148968620 has 24 divisors (see below), whose sum is σ = 331236864. Its totient is φ = 56082176.

The previous prime is 148968619. The next prime is 148968647. The reversal of 148968620 is 26869841.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218732 + ... + 219411.

It is an arithmetic number, because the mean of its divisors is an integer number (13801536).

Almost surely, 2148968620 is an apocalyptic number.

148968620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148968620 is an abundant number, since it is smaller than the sum of its proper divisors (182268244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148968620 is a wasteful number, since it uses less digits than its factorization.

148968620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438169 (or 438167 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 148968620 is about 12205.2701731670. The cubic root of 148968620 is about 530.1086996700.

The spelling of 148968620 in words is "one hundred forty-eight million, nine hundred sixty-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 438143 876286 1752572 2190715 4381430 7448431 8762860 14896862 29793724 37242155 74484310 148968620